CY29943 Cypress Semiconductor, CY29943 Datasheet
CY29943
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CY29943 Summary of contents
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... Cypress Semiconductor Corporation Document #: 38-07285 Rev. *C 2.5V or 3.3V 200-MHz 1:18 Clock Distribution Buffer Description The CY29943 is a low-voltage 200-MHz clock distribution buffer with an LVPECL-compatible input clock. All other control inputs are LVCMOS-/LVTTL-compatible. The eighteen outputs are 2.5V or 3.3V LVCMOS- or LVTTL-compatible and can drive 50 series or parallel terminated transmission lines. For series terminated transmission line, each output can drive one or two traces giving the device an effective fanout of 1:36 ...
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... Document #: 38-07285 Rev. *C PWR I PECL Input Clock I, PD PECL Input Clock I, PU Output Enable. When HIGH, all the outputs are enabled. When set LOW, the outputs are at high impedance. VDD O Clock Outputs 3.3V or 2.5V Power Supply Common Ground No Connection CY29943 Description Page ...
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... V ) < out Min. Typ. Max. V 0 –200 200 500 1000 V – 1.4 V – 0 – 1.0 V – 0 0.5 2.4 2 285 335 200 240 CY29943 Unit V V µA µ CMR Page ...
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... Part-to-Part Skew Tr/Tf Output Clocks Rise/Fall [7, 8] Time Differential Pulse Generator ohm Figure 1. PECL_CLK CY29943 Test Reference for V PECL_CLK PECL_CLK Notes: 6. Parameters are guaranteed by design and characterization. Not 100% tested in production. All parameters specified with loaded outputs. 7. Outputs driving 50 transmission lines. 8. ...
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... Document #: 38-07285 Rev 100% Figure 3. Output Duty Cycle (FoutDC) t SK(0) Figure 4. Output-to-Output Skew tsk(0) CY29943 VCC VCC /2 GND VCC VCC /2 GND VCC VCC /2 GND Page ...
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... Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. Package Type Industrial, –40°C to +85°C Industrial, –40°C to +85°C Commercial, 0°C to +70°C Commercial, 0°C to +70°C CY29943 Production Flow 51-85088-*B Page ...
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... Document History Page Document Title: CY29943 2.5V or 3.3V 200-MHz 1:18 Clock Distribution Buffer Document Number: 38-07285 Issue REV. ECN NO. Date ** 111096 02/07/02 *A 116779 08/14/02 *B 118744 09/18/02 *C 122877 12/21/02 Document #: 38-07285 Rev. *C Orig. of Change BRK New data sheet HWT Add Commercial Temperature range in the ordering Information HWT Update output duty cycle on page 4 RBI Add power up requirements to maximum rating information ...
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